War Of Attrition Calculator
Free online war of attrition calculator. Enter your values and get instant results with the formula, step-by-step working, a worked example and FAQs — everything runs locally in your browser on Calcton, no signup required.
中文版:消耗战博弈计算器
原理:消耗战是比谁先撑不住的等待博弈——奖品 V 归坚持到最后者,双方每单位时间各烧成本 c。混合均衡里每方的坚持时长服从指数分布,退出率 λ = c/V,期望坚持 V/c。价值越高、消耗越慢,越值得久等;但任何一方严格随机坚持时,另一方的期望回报恰好为零。
步骤:① 输入奖品价值、单位消耗与考察时刻;② 点击分析;③ 读出退出率、期望时长与对手先退的概率。
示例:V = 100、c = 10、t = 5 时 λ = 0.1、期望坚持 10,对手在 5 单位时间内先退的概率约 0.393469340287。
注意事项:消耗战的期望总成本可能吃掉大半奖品——双方都坚持时是双输,这正是竞价战与专利战的警示模型;均衡假设价值与成本共同知识,价值更高的一方在不对称信息下会坚持更久;本工具给对称情形的混合均衡。
相关:指数分布可用概率计算器复核;重复博弈计算器展示长期互动如何替代消耗;零和博弈计算器给出离散等待的简化版。
How to use the War Of Attrition Calculator
- Fill in the inputs with your own numbers — every field shows what it expects.
- The result updates instantly as you type; no "Calculate" click needed.
- Read the result card for the main figure, the step-by-step formula, and practical notes.
Frequently asked questions
Is the War Of Attrition Calculator free?
Yes — all math calculators on Calcton are free, with no sign-up required. Your inputs are processed in your browser and never sent to a server.
Is there a Chinese version of this tool?
Yes. Use the Chinese version link above — it is the same calculator with the interface in Simplified Chinese.
References
Formulas and benchmarks used by this calculator follow these published sources.
KevinContent LeadCalcton Editorial Team · Last updated 2026-10-05
Kevin maintains Calcton's formula verification and content: every calculator cites the standard it implements, worked examples are recomputed programmatically, and health benchmarks follow WHO and international guidelines.
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